What is the function of isopropanol in the photocatalytic system?

Label:chem

Topic
Isopropanol serves as an additional hydrogen donor and an antioxidant in the photocatalytic conversion of benzaldehyde, specifically preventing the excessive hydration of benzonitrile into benzamide.
Answer
Isopropanol functions as both a hydrogen donor and an antioxidant, preventing benzonitrile from hydrating excessively into benzamide during the photocatalytic reaction.
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